Receptacle base



July 23, 1946. w. GLEISNER 2,404,485

RECEPTACLE BASE Filed NOV. 8, 1945 Patented July 23, 1946 UNITED STATES PATENT OFFICE RECEPTACLE BASE Walter). Gleisner chicago, Ill., assignor to C.

Ritchie and Company, Chicago, 111., a corporatioli of Illinois Application November 8, 1945, Serial No. 627,356 '7 claims. (01. 1229-515) upside down with the powder to be marketed and,

then the bottom of the drum is snapped orforced into place closing the bottom thereof and having an extended marginal portion underlying the lower edge of the removable cover when the box is completed and is right side up.

Such filled containers are subjected to various.

conditions"- which tend to detrimentally affect them or their contents.

Such applied bottom must seal its opening tightly under all conditions of temperature, moisture, careless handling, etc. This bottom must not shrink or expand any'appreciable amount; it must retain its original size, and in some instances the matter of transmission of heat or cold through the bottom to the contents may be a si nificant factor.

For example, if one such filled container is displayed in the sunshine in a store window for an extended period, it is likely to shrink or otherwise be modified so that it does not seal tightly and the contents of the receptacle may be spoiled or detrimentally affected or spilled.

A plastic bottom could readily be modified under such conditions as to make it undesirable.

According to the present invention, the novel and improved bottom is made in a special manner to provide a resulting structure which is not subject to the indicated and other weaknesses and defects which render them unsatisfactory in one or more respects.

In order that those acquainted and skilled in this art may understand this invention, both from structural and operative standpoints, a present preferred type of bottom and its method of production have been fully illustrated in the accompanying drawing forming a part of this specification and to which reference should be had in connection with the following detailed description thereof.

In this drawing:

Figures 1 and 2 illustrate the original metalv disc employed;

process of making the bottom; r;-

Figures 3 and 4 portray the'first'istep'i Figures 5 and 6 depict the second step in the method of forming the metal member of the bottom; Figure 7 shows the pasteboarv disc; a!

Figure 8 presents the metal in pasteboard disc united together;

Figure 9 reveals the applicat pasteboard disc inside "of the bott n; V Figure 10 is a section through the joi'nplet' boxor container; and p p e j, I

Figure 11 is an enlarged, fragmentaryifsection of a'portion of the box to more clearly present its details of construction.

In accordance with the new proceduregof J he present'invention a flat, round, thin, meta 2| of proper diameter, as shown in Figure 2, by means of suitable companion dies, is ed into inverted dish-form 22, Figures 3 and 4,, ,With' a marginal depending rim 23 and an outstand terminal, circular flange 24, the main body of such member having a series of circularly-di'sposed, spaced-apart, smallapertures 25, 25 con-" centric with the element itself, and the metal which formed the apertures having been forced down to provide around each such holeifour, de-

pending, sharp-pointed, doWnward-flaringfprongs 26, 26. I Thereafter, the whole main body" 23 into the plane of the marginal iiangeZflI as depicted in Figures 5 and 6, thereby making the new circular rim 27 of double thickness and undercut on its outer face and sloping upwardly outwardly on its inner surface.

Thereupon, Figures 6 and '7, such formed metal member 28 with its depending, sharp-pointed, flaring prongs is placed coaxially on the top surface of a somewhat-larger, fiat, round, pasteboard or comparable disc 29 and then pressed or forced down into firm engagement with such surto or he disc is pressed or forced down inside. of'the irn is in its encasing cover 33 and both are upside down so that their bottoms are open (not so shown) the now completed novel and improved bottom is snapped onto and partly into the open bottom of the drum, the circular rim or head 21 of the metal member of the bottom extending in beyond the internal, curled, marginal bead 34 of the drum and being permanently held and maintained in powder-tight relation therewith from then on.

The one outstandinghighly desirable characing integral externally-undercut rim and a plurality of depending, integral, flaring prongs embedded in said lower element thereby fastening said upper member and lower element permanently together.

2. The novel combination in a receptacle bottom set forth in claim 1, in which said metal rim is of double-thickness.

3. The novel combination in a receptacle bottom set forth in claim 1, in which said upstand- "ing undercut rim is inwardly away from the teristic of this new type of bottom is that it can- 7 e not change size or becomedeformed because of its metallic Properties. 7, v H v The cover of this container may have a paper covering of artistic appearance and the exposed edgeof the bottom below the cover may be, also supplied with an attractive covering whereby the container as a whole can be extremely pleasing in appearance.

Those acquainted with this art and industry will readily understand that the present invention is not necessarily confined to the exact and precise details of structureset forth and that reasonable changes may be availed of both as tion of an upper metal-member and a lower fibrous-element, said member having an upstand- V wAhTERJc oLEIsNaa.

periphery of such metal member.

7 4. The novel combination in a receptacle boti tom -set forth in claim 1, in which said prongs are inwardly of the metal member from said upstanding rim.

5. The novel'c'ombination in a receptacle bottomset forth in claim 1, in which said lower fibrous=element is sufficiently large to underlie the cover of the receptacle:- I

GJThe novel combinationin a receptacle bottom set forth'in claim 1, in which said prongs aredivided into groups, each group surrounding anaperture through the metal member 7. The 'novel combination in a receptacle bottom setrforth in claim 1, in which said member and element are circular and concentric, in'which said element is larger than said member in which said rim is of double-thickness aridcircular, and in which said prongs are divided into a circular 'series of groups, each group surrounding-an aperture through the member and said prongs and apertures are concentric with the metal member and are within said rim.-- 

